Patents by Inventor Billy Mac Graves

Billy Mac Graves has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bi-component friction disc for yarn texturing
    Patent number: 4068457
    Abstract: A bi-component friction disc for imparting false twist to yarn to texture the yarn comprising an inner surface having a first portion of ceramic material surrounded by a second portion of polyurethane or rubber. Typically, one of these discs is installed on each end of a hollow tube, and two sets of tubes and discs are used in order to allow the yarn being textured to make four passes over the discs to impart the false twist.
    Type: Grant
    Filed: July 13, 1976
    Date of Patent: January 17, 1978
    Assignee: Intech Corporation
    Inventors: John W. Glaze, Jr., Billy Mac Graves